Heating apparatus for melting snow



(No Model.) 7 I G. DELAFIELD.

HEATING APPARATUS FOR MELTING SNOW. No. 250,212 Patented Nov. 29,1881.

VV/T/VESSES. l/vvszvron.

UNITED STATES- PATENT OFFICE.

CLARENCE DELAFIELD, OF WEST NEW BRIGHTON, NEW YORK.

,HEATING APPARATUS FOR MELTlNG SNOW.

SPECIFICATION forming part of- Letters Patent No. 250,212, dated November 29, 1881.

Application filed April 29, 1881. (No model.)

To all whom it may concern:

Beit known that I, CLARENCE DELAFIELD, of West New Brighton, in the county of Richmond and Stateof New York, have invented a new and useful HeatingApparatus for Meltingthe Snow and Ice offof Streets or Railways, of which the following is a description in such full, clear, concise, and exact terms as to enable any one skilled in the arts to which it appertains or with which it is most nearly connected to make and use the same, reference being had to the accompanying drawing, making part of this specification, and to the figarcs and letters of reference marked thereon.

My invention relates to traveling heating apparatus for melting snow and ice 011' of streets and railways; and it consists of a novel combination of a steam-boiler, furnace, heating-fines, and ejecting devices, as hereinafter described.

Figure 1 of the drawing is a longitudinal vertical section through the apparatus, showing all of its essential principles, leaving the mere detail of construction to be filled up by the mechanic, as the exigency of use or economy may dictate.

The apparatus consists, essentially, of a frame, A, carried upon wheels B B, by which the machine is transported and moved when in operation.

G is a heating-furnace, of which D is the grating, and E fire-brick walls or a waterspace, after the ordinary form of steam-boiler furnaces.

F is a hot-air flue leading directly from the furnace to one end of the machine, directeddownward and terminating near the ground,

and having an adjustable nozzle, G, hinged at h, for the purpose of turning the heat in the proper direction to obtain the best result in the varying circumstances attending the use of the machine. The flue F is made through the side wall or water-space that incloses the furnace, and should be nearly as wide as the machine, and the furnace should be as deep as the flue is wide, or nearly so, to insure the best results. The walls of the flue should be composed of or covered with some good non-conducting or non-combustible materialsuch as asbestus, for example-so as to avoid waste of heat by radiation, as well as the inconvenience attending an excessively hotflue.

and the hot air is forced down the flue, as in dicated by the arrows.

J is a water-tank, from which the boiler H is fed by means of a steam-pump, K, connected to the boiler by pipe L, the feed-pipe from the pump to the boiler being shown by m.

The draft-pipe of the furnace is shown by O, in which a damper, P, is fitted to stop the draft through the pipe and turn it into the flue when the machine is in operation. N is a drawing and forcing blower set across the throat of the flue. It may be operated by any of the well-known means used in such cases. It is used for the purpose of drawing the'air through the furnace and forcing it down the flue when the steam-jets are not used. The steam-jets are an auxiliary of the blower, or the blower is an auxiliary of the steam-jets.

Either one may be dispensed with and good results obtained.

The machine may be moved in either direction, and may be adapted to streets, roads, or railways. It may be driven by machinery propolled by the steam of the boiler, as in the case of locomotives, or itmay be drawn by animals. Its operation is apparent. The boiler being supplied with water,it is only necessary to start a firein the furnace, open the damper P, and as soon as sufficient pressure is obtained in the boiler close the damper P and open the steam-jets, using the blower or not, as may be necessary.

Having thus described my invention, Iclaim and desire to secure by Letters Patent- The combination of the boiler H, furnace O, flue F, and the blower N, constructed and arranged in relation to each other substantially as described, for the purpose specified.

CLARENCE DELAFIELD.

\Vitnesses Amos BROADNAX, WM. H. BROADNAX. 

